High-End Upgraded M7 Tube Pre-Amplifier with upgraded designed modified from famous Marantz 7.

Immediately add improvement to sonic characteristics of power amplifier. (Air, details, width and depth of sound stage)

Performance comparable to products with over double or even triple selling price in the hi-end audio market.

The following picture show the BARE PCB of this tube preamp for DIYer available in my MAll

Features:

This High-End Tube Pre-Amplifier utilize an upgraded circuit design improved from the famous Marantz 7 and with features as follow.

• Dual mono design with independent power supply for each channel to ensure total channel separation (individual transformer, inductor, tube rectifying regulated power supply board for each channel)
• High quality of workmanship
• Components selected for improved sound quality
• Audio grade solder material used
• High quality "Alps" volume control used
• Hi-end gold plated RCA input/output connectors.
• Use 2pcs 12AX7/ECC83 and 2pcs 12AU7/ECC82
• Power required = 220Vac.   
• Tube rectifier for preservation of the essences of tube sound.
• Upgraded power supply circuit design.   
• 3 sets of independently regulated tube filament power supply to individual tube for minimizing mutual interference.
• Output delay circuit incorporated.
• Size : 430mmW  x 380mmD x 100mmH
• Titanum colour thick Aluminum front panel 
• Selector input for AUX, DVD, CD, TURNER
• 2 sets RCA output
• Bare or half finsihed PCB as well as power supply board for DIYer are also available in our Mall.